/**
 * 全站http配置
 *
 * axios参数说明
 * isSerialize是否开启form表单提交
 * isToken是否需要token
 */
import axios from 'axios'
import store from '@/store/'
import router from '@/router/router'
import { serialize } from '@/util/util'
import { getToken } from '@/util/auth'
import { Message } from 'element-ui'
import website from '@/config/website'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
axios.defaults.timeout = 10000
//返回其他状态吗
axios.defaults.validateStatus = function(status) {
  return status >= 200 && status <= 500 // 默认的
}
//跨域请求，允许保存cookie
axios.defaults.withCredentials = true
// NProgress Configuration
NProgress.configure({
  showSpinner: false
})
//HTTPrequest拦截
axios.interceptors.request.use(
  config => {
    NProgress.start() // start progress bar
    const meta = config.meta || {}
    const isToken = meta.isToken === false
    if (getToken() && !isToken) {
      config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带token--['Authorization']为自定义key 请根据实际情况自行修改
    }
    //headers中配置serialize为true开启序列化
    if (config.methods === 'post' && meta.isSerialize === true) {
      config.data = serialize(config.data)
    }
    return config
  },
  error => {
    return Promise.reject(error)
  }
)
//HTTPresponse拦截
axios.interceptors.response.use(
  res => {
    NProgress.done()
    const status = Number(res.status) || 200
    const statusWhiteList = website.statusWhiteList || []
    const message = res.data.msg || res.data.error_description || '未知错误'
    //如果在白名单里则自行catch逻辑处理
    if (statusWhiteList.includes(status)) return Promise.reject(res)
    //如果是401则跳转到登录页面
    if (status === 401)
      store.dispatch('FedLogOut').then(() => router.push({ path: '/login' }))
    // 如果请求为非200否者默认统一处理
    if (status !== 200) {
      Message({
        message: message,
        type: 'error'
      })
      return Promise.reject(new Error(message))
    }
    return res
  },
  error => {
    NProgress.done()
    return Promise.reject(new Error(error))
  }
)

export default axios
